fix(core/protocols): awsQuery error shape consistency and ec2 middleware content length

Author: kuhe

packages/middleware-sdk-ec2/src/index.ts

@@ -5,6 +5,7 @@ import { SignatureV4 } from "@smithy/signature-v4";
 import { extendedEncodeURIComponent } from "@smithy/smithy-client";
 import type {
   AwsCredentialIdentity,
+  BodyLengthCalculator,
   ChecksumConstructor,
   Endpoint,
   HandlerExecutionContext,
@@ -29,6 +30,7 @@ interface PreviouslyResolved {
   sha256: ChecksumConstructor | HashConstructor;
   signingEscapePath: boolean;
   regionInfoProvider?: RegionInfoProvider;
+  bodyLengthChecker: BodyLengthCalculator;
 }
 
 const version = "2016-11-15";
@@ -123,6 +125,9 @@ export function copySnapshotPresignedUrlMiddleware(options: PreviouslyResolved):
           if (!(request.body ?? "").includes("PresignedUrl=")) {
             request.body += `&PresignedUrl=${extendedEncodeURIComponent(args.input.PresignedUrl)}`;
           }
+          if (typeof options.bodyLengthChecker === "function") {
+            request.headers["content-length"] = String(options.bodyLengthChecker(request.body));
+          }
         }
       }